Home / 706,412,756.75-974,849,606.87-393,220,957.46

Finding the Fourth Proportional to 706,412,756.75, 974,849,606.87 and 393,220,957.46

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Solution

The fourth proportional to 706,412,756.75, 974,849,606.87 and 393,220,957.46 is: 542,644,922.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    706,412,756.75 : 974,849,606.87 = 393,220,957.46 : x
  2. Step 2: Convert to fraction form
    706,412,756.75/974,849,606.87 = 393,220,957.46/x
  3. Step 3: Cross multiply
    706,412,756.75x = 974,849,606.87 × 393,220,957.46
  4. Step 4: Simplify right side
    706,412,756.75x = 383,331,295,786,085,632
  5. Step 5: Solve for x
    x = 383,331,295,786,085,632/706,412,756.75
  6. Step 6: Final answer
    x = 542,644,922.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.